Which of the following scientists found that the air that we breathe out precipitated lime water ?
A) Lavoisier
B) Priestley
C) Ingenhouz
D) Pelletier
1 Answers
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0.98 g of the metal sulphate was dissolved in water and excess of barium chloride was added. The precipitated barium sulphate weighted 0.95 g. Calcula
Correct Answer - 72.61
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A solution reacts with crushed egg shells to give a gas that turns lime water milky. The solution contains
Correct option is B) HCZ
2 Answers 1 views
Lime water turns into milky white due to the formation of
Correct option is C) only iii
2 Answers 1 views
Statement I : When carbon dioxide passes through lime water it will turn into milky. Statement II : When excess of carbon dioxide
A) Both statements are true
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When air is blown from mouth into a test tube containing lime water, the lime water turned milky.
(D) Carbon dioxide
2 Answers 1 views
The refractive index of glass with respect to air is 3/2 and the refractive index of water with respect to air is 3/2.
Correct option is D) 8/9
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‘The air we breathe is made up of lots of other things besides oxygen’. Identify the broad composition of dry air.
Air is a mechanical mixture of a variety of gases. The main constituents of this mixture are nitrogen and oxygen, accounting for almost 99% of the whole, with roughly three...
2 Answers 1 views
The process of preparing slaked lime by adding water to quicklime is this type of chemical reaction.
B) Exothermic reaction
2 Answers 1 views
Quick lime reacts vigorously with water releasing a large amount of heat. Which type of reaction is this ?
Correct option is C) 2, 4
2 Answers 1 views
Folic Acid discovery is associated with the following scientists
(C) Y. Subba Rao
2 Answers 1 views